June in Hakone is the rainiest and the cloudiest month of the year. In June, the weather in Hakone is typically warm. Average daily high temperature in June is about 21 degrees above zero. On average, Hakone has 24 rainy, 3 cloudy, 2 sunny, and 1 partly cloudy day in June. The rains are usually heavy. June as well as February, March, April, and July is considered the most uncomfortable time to visit Hakone.